摘要:
A device for the stepless alteration of the seat depth of a seat cushion of a car seat, has a variable-pressure air cushion which is arranged, on the front side of the seat cushion, between a padded rest and a supporting surface. An extremely high degree of support is achieved if the air cushion is configured approximately in the form of a U and its legs, oriented in the direction of the rear edge of the seat cushion, bear on a side support which terminates towards the front side of the seat cushion and is formed by the extremely dimensionally stable supporting surface.
摘要:
For use by an emulation circuit, a non-special-custom microcontroller multiplexes a port among user data and program store addresses. It has a multistate machine cycle with plural clock pulses per state. Various additionally provided emulation pins allow for outputting to an emulation circuit any or all of the following signals:a start-of-cycle pulse indicating non-sleep modea state-wise recurrent signal signalling progress of said states during non-sleep modea signal discriminating between idle and reseta multiplexed signalization among any or all of the following:that a next-following machine cycle is the first of a next instruction;that presently an interrupt is being processed;that an external program memory access is forthcoming;that an external data memory access occurs;that an external data memory write access occurs.Since more accurate timing signals are thus provided to the emulation circuit by the microcontroller than can be derived by the emulation circuit otherwise, the emulation circuit can operate at higher speeds.
摘要:
To provide an electric or electronic circuit arrangement as well as a method of detecting and/or identifying and/or recording at least an access violation, particularly at least a memory access violation, in a microcontroller provided particularly for a chip card or smart card, with which the source causing this access violation (referred to as break source) as well as the code address occurring upon this violation can be detected and/or identified and/or recorded when an access violation occurs during the program run, the circuit arrangement comprises at least a memory unit; at least an interface unit assigned to the memory unit; at least a processor unit connected to the memory unit particularly via the interface unit for executing instruction codes. These instruction codes can be requested from the interface unit by means of at least a request unit; are run up in at least a fetch or request queue in the request unit; and are decodable by means of at least a decoding unit assigned to the processor unit for running the fetch or request queue, in which a given category of access violation codes is assignable to each given category of access violations. The access violation code replaces the corresponding instruction code, and comprises data such as information on the address, particularly the code address and/or the type and/or the location and/or the source and/or the instant of the access violation.